How IoT Can Leverage SD-WAN and SDP for Security and Performance

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How IoT Can Leverage SD-WAN and SDP for Security and Performance

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· IoT Zone ·
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The Internet of Things (IoT) is becoming more and more important for businesses of all sizes. The good news for businesses and security professionals alike is that they can find ways to smartly incorporate IoT into their processes to give them an opportunity to compete on a bigger scale.

But what about security and performance?

Fortunately, new technologies, such as SD-WAN and SDP, can help keep your IoT infrastructure safe from hacking and user exploits.

How SDP and SD-WAN Take Security to the Next Level

Each time you add a new IoT device to your roster, you are adding a new component that requires security to keep it safe from internal and external attacks.

With the added security needs of IoT, new measures have had to be developed that go beyond the typical client-server model of Internet infrastructure.

1. SDP: A New Alternative to the Firewall

SDP stands for “software-defined perimeter.” A concept developed by the Cloud Security Alliance, SDP is a dynamic, on-the-fly alternative to the traditional firewalls and network controls that typically protect networks. 

As TechTarget.com explains, "The framework is based on the Department of Defense's "need-to-know" model; all endpoints attempting to access a given infrastructure must be authenticated and authorized prior to entrance. Once authorization — which takes place in the cloud — is complete, trusted devices are given a unique, temporary cryptographic connection to the target infrastructure.  Until then, the infrastructure is protected by an SDP is "black."  This means that IP addresses for the target infrastructure are only revealed to authorized devices."

The problem with traditional firewalls is that they tend to be all or nothing. You either get access to too much or you get blocked completely. Sure, you can block users or IP addresses temporarily, but the user then regains total access once the block expires. Also, IP addresses are too easy to spoof, so blocking based on IP doesn’t solve anything in the long run.

SDP provides a more nuanced and complex approach to network protection that speaks to some of the problems with the old-fashioned firewall. They reduce the chances of network-based attacks, like man-in-the-middle attacks, cross-site scripting, SQL injections, and denial-of-service attacks. 

2. SD-WAN: Adding Additional Security and Performance

SD stands for “software-defined” and WAN stands for “Wide Area Network.” The most obvious connection between IoT and SD-WAN is that IoT endpoints are most likely in remote locations where it doesn't make sense to deploy on-site network engineers, MPLS circuits, or a Cisco router. 

SDP, on its own, can do a lot in regards to security, but it does not handle performance concerns. For additional network reliability, pairing SDP with SD-WAN can be of great benefit.

Additional features of an SD-WAN solution might include encryption, connectivity with cloud security services, and a streamlined branch security infrastructure. 

By adding SD-WAN to an SDP implementation, you can improve both your security as well as the performance of the whole IoT landscape for your company.

Developing a Smart IoT Security Strategy

Depending on the size of your business, you may or may not have staff on hand who know enough about IoT security to do a full audit and plan for your systems. Take some time to talk to your tech people and get an accurate assessment of your strengths and weaknesses.

If you need to, get an outside consulting firm to come in and provide their take on best practices for your business’s technology goals. Don’t wait until a problem comes up — take a proactive approach to maintain a strong and healthy IoT infrastructure.

sd-wan ,internet of things ,security ,iot ,sdp ,performance

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